* {
  margin: 0;
  padding: 0;
}

html, body {
  height: 100vh;
  flex-direction: column;
}

body {
  padding-left: 10px;
  padding-right: 10px;
  background-color: #fff;
  color: #636b6f;
  font-family: 'Raleway', sans-serif;
  font-weight: 100;
  height: 100vh;
}

a {
  color: #00B7FF;
}

header {
  height: 100px;
 /* background-color: #00B7FF;*/
}

main {
  flex: 1;
}

footer {
  height: 200px;
}

html, body, main, header, footer,.content {
  display: flex;
}

.title {
  font-size: 84px;
  font-weight: 100;
}

.title-mid {
  font-size: 20px;
  font-weight: 100;
}

.content {
  flex-direction: column;
}

main, header, footer,.content {
  align-items: center;
  justify-content: center;
}

.nav-ul {
   display: flex;
   list-style: none;
   flex-direction: row;
}

.nav-ul li a {
  text-decoration: none;
  color: #636b6f;
}